07-22-2009 12:57 PM - edited 03-06-2019 06:54 AM
Hi every body!
i am just curious if a switch has f0/1 as trunk, and i use the command " show mac address-table", how it will appear in the output.
Thanks and have a nice weekend !
Solved! Go to Solution.
07-24-2009 09:41 AM
It will list every single mac-address that transits the switchport for each Vlan.
Here is a sample of a switch that has a trunk port
#sh mac address-table | i Fa0/1
1 000d.bd28.428d DYNAMIC Fa0/1
1 000d.bd28.428e DYNAMIC Fa0/1
18 000d.bd28.428e DYNAMIC Fa0/1
5 000d.bd28.428e DYNAMIC Fa0/1
7 000d.bd28.428e DYNAMIC Fa0/1
26 000d.bd28.428e DYNAMIC Fa0/1
26 0011.20b5.f520 DYNAMIC Fa0/1
26 0013.606c.b201 DYNAMIC Fa0/1
47 000d.bd28.428e DYNAMIC Fa0/1
47 000f.f7c7.6740 DYNAMIC Fa0/1
62 000d.bd28.428e DYNAMIC Fa0/1
62 000f.f7c4.1100 DYNAMIC Fa0/1
62 0013.606c.b200 DYNAMIC Fa0/1
55 000d.bd28.428e DYNAMIC Fa0/1
55 0013.7f8e.a121 DYNAMIC Fa0/1
43 0004.9af8.9500 DYNAMIC Fa0/1
43 000d.bd28.428e DYNAMIC Fa0/1
43 001c.0e8d.48c2 DYNAMIC Fa0/1
3 000d.bd28.428e DYNAMIC Fa0/1
3 0013.7fae.fc21 DYNAMIC Fa0/1
The first column is the Vlan #
The Second column is the mac-address
The third column is the type
The fourth column is the port
07-24-2009 09:41 AM
It will list every single mac-address that transits the switchport for each Vlan.
Here is a sample of a switch that has a trunk port
#sh mac address-table | i Fa0/1
1 000d.bd28.428d DYNAMIC Fa0/1
1 000d.bd28.428e DYNAMIC Fa0/1
18 000d.bd28.428e DYNAMIC Fa0/1
5 000d.bd28.428e DYNAMIC Fa0/1
7 000d.bd28.428e DYNAMIC Fa0/1
26 000d.bd28.428e DYNAMIC Fa0/1
26 0011.20b5.f520 DYNAMIC Fa0/1
26 0013.606c.b201 DYNAMIC Fa0/1
47 000d.bd28.428e DYNAMIC Fa0/1
47 000f.f7c7.6740 DYNAMIC Fa0/1
62 000d.bd28.428e DYNAMIC Fa0/1
62 000f.f7c4.1100 DYNAMIC Fa0/1
62 0013.606c.b200 DYNAMIC Fa0/1
55 000d.bd28.428e DYNAMIC Fa0/1
55 0013.7f8e.a121 DYNAMIC Fa0/1
43 0004.9af8.9500 DYNAMIC Fa0/1
43 000d.bd28.428e DYNAMIC Fa0/1
43 001c.0e8d.48c2 DYNAMIC Fa0/1
3 000d.bd28.428e DYNAMIC Fa0/1
3 0013.7fae.fc21 DYNAMIC Fa0/1
The first column is the Vlan #
The Second column is the mac-address
The third column is the type
The fourth column is the port
03-05-2023 04:26 AM
I have noticed that the same MAC addresses appear for different VLANs, for example, 000d.bd28.428d. Why is that?
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